JPS604794A - Transportation of heat - Google Patents

Abstract

PURPOSE:To permit to transport heat by a running unit by a method wherein devices for condensing a gas generated from a heat accumulating medium by heated fluid are integrated into an unit. CONSTITUTION:A heat storing mechanism is made by a method wherein a fluid path 3 is accommodated in a heat accumulating medium tank 2, the upper part of the tank 2 is communicated with a liquid receiving tank 4, provided with a heat exchanging tube 10, through a communicating pipeline 7 and the lower part of the liquid receiving tank 4 is connected to the heat accumulating medium tank 2 through the communicating pipeline 8. This heat storing mechanism is mounted on the unit 9 consisting of a running carriage, chassis, self-propelled transport equipment or the like. Heat is applied to the fluid path 3 at a heat supplying place and the gas, separated and generated from the heat accumulating medium 1 due to the heat applied, is stored as liquid. At a place demanding the heat, the stored liquid, transported by the unit 9, is sent into the heat accumulating medium tank 2 through the communicating pipeline 8 and the heat, generated by reacting or absorbing said condensed liquid into the heat accumulating medium 1, is transmitted to the fluid in the fluid path 3.

Description

[Detailed description of the invention] The present invention stores heat in a heat supply area where there is waste heat, etc.
The present invention relates to a heat transport device that transports this heat to a heat demand area.

Currently, a huge amount of heat is discarded without being used at factories and incinerators. This is extremely uneconomical from a national economic point of view and does not meet the demand for energy conservation, and at the same time is a cause of negative effects on the environment around these factories. Therefore, it is desirable to utilize this waste heat by transporting it to the areas where it is needed for effective use. Conventionally, a system of waste heat utilization between each plant has been proposed, but this is not possible. Not only does this impose regional constraints, but if heat is to be transported via pipes in the form of hot water, construction costs such as piping costs and civil engineering costs will be enormous, and management problems will arise. This poses a major disadvantage in that there are also problems. In addition, in this case, both the load and waste heat often change (+frJ), so in addition to piping work, equipment such as a heat storage tank to even out the supply and demand of heat to a certain degree is required, which complicates operation operations. It has its drawbacks.

The present invention aims to accurately eliminate these conventional drawbacks, and uses a heat transport method that does not use pipeline transportation equipment to provide a compact, easy-to-handle, and reliable system that has a high waste heat regeneration rate and does not pose management problems. The purpose of this invention is to provide a heat transport method using a heat transport unit with high performance.

The present invention consists of a heat storage medium that generates gas through a chemical reaction when heated, generates heat when the condensate of the gas is re-entered, and returns to its original state; and a fluid that can transfer heat to the heat storage medium. A storage medium tank equipped with a passageway is connected in communication with a heat exchanger for condensing and liquefying the gas generated by the heat storage medium by the heat of the heating fluid flowing through the fluid passageway. Equipped in a transportable unit, at the heat supply location, gas is generated from the heat storage medium by the heating fluid, the unit is transported to the heat demand location, and the condensed liquid is re-entered into the heat storage medium tank at the heat demand location. By doing so,
This is a heat transport method for heating a fluid to be heated.

The present invention will be explained with reference to the 1st and 4th embodiments.
In Fig. 1, a material such as Ca(OH)2, which generates gas when heated and generates heat when the condensed liquid of the gas is fed again, is used as the heat storage medium l in Fig. 1. A fluid passage 3, for example, a heat exchange tube, is installed inside the heat storage medium tank 2, and the top of the tank is connected to the heat exchange section via a connecting pipe 7. The lower part of the liquid receiving tank 4 is connected to the heat storage medium tank 2t by a connecting pipe V8 to form a heat storage mechanism, which can be connected to a traveling frame, a trolley, or a motor vehicle. It is equipped in Unit 9, such as Sho-III@Equipment. In the heat supply area, a fluid passage 3 capable of heat transfer with the heat storage medium 1
By applying heat through a fluid, the gas separated and generated from the heat storage medium 1 is stored as a liquid by a mechanism that liquefies and stores it. It is possible to transport a heat storage device configured to send heat into the heat storage medium 412 through the piping 8 and to cause the heat storage medium 1 to react or absorb the condensed liquid, thereby transferring the heat generated to the fluid in the fluid passage 3. This is how it should be. That is, although the entire heat storage mechanism is mounted in a transportation vehicle such as a car 41 or a ship, the container of the heat storage device itself may also have a structure that also serves as the outer wall of the transportation vehicle. In the example shown in FIG. 1, heat is stored by heating the heat storage medium l in the heat storage medium tank 2. In the example shown in FIG. That is, at a heat supply site where waste heat is supplied, a heat source fluid such as high-temperature water is taken into the fluid passage 3 from the heat medium inflow pipe 5, and by flowing it through the fluid passage 3, the heat storage medium 1
heat up. Conversely, the heat source fluid is cooled and flows out from the heat medium outflow pipe 6.

These pipes 5 and 6 are conveniently connected to and disconnected from a heat source or load in a heat supply area or a heat demand area (described later).
As shown in the figure, it is disposed above the fluid passage 3, and a valve and/or joint is provided at the end.

When the heat storage medium 1 is Ca(OH)2, it is heated by the fluid in the fluid passage 3 and steam is generated as shown in the following equation.

Ca(OH)2+QI Kcal/mol->CaO+
H20 (water vapor) and generated gases such as this water vapor are guided into the liquid receiving tank 4 through the connecting pipe 7. This liquid receiving tank 4
There is a fluid passage for a heat exchange tube 10 inside, and the gas is cooled by the cooling fluid flowing inside the tube 10, and the gas is stored in liquid form in the liquid receiving tank 4 under the condensate.

In this case, the fluid sent into the tube 10 is seawater,
Cooling tower water etc. are used.

Of course, if the amount of generated gas is small, the purpose can also be achieved by cooling the outer surface of the liquid receiving tank 4 with fresh air or natural ventilation. On the other hand, when the inside of the liquid receiving tank 4 is almost filled with liquid, the valve 14 is closed, the connecting pipes connected thereto are removed, and the entire apparatus, that is, the transportation unit 9, is moved to a place of heat demand.

In the heat demand area ζ, the heat medium and the piping 5°6 No.A 111 for supplying people are connected to the load. In addition, the liquid receiving tank 4
The stored liquid inside passes through the connecting pipe 8 and flows into the heat storage medium tank 2. When the heat storage medium is Ca(OH)2, the reaction is the opposite of the previous equation: Ca(OH)2 + Q2 + Kcal / mo1
4- CaO+ H2O (liquid) generates heat.

This heat serves the purpose of heating the load fluid in the fluid passageway 3.

Of course, it is also possible to manufacture the heat exchange tube 10 separately from the liquid receiving tank 4 and dividing it into two parts: the heat exchanger and the liquid receiving tank.

If the reaction or absorption of the heat storage medium in the heat storage medium tank 2 is slow with respect to the load, a pump 15 is installed in the connecting pipe 8 as shown in FIG. , 94 to the heat storage medium tank 2? Delivery, reaction or absorption can also be accelerated.

Further, when the temperature required by the load is high, it is necessary to configure the heat exchange tube in the receiving tank 4 with two tubes, one for liquefaction and condensation and one for heating, as shown in FIG. In this embodiment, when the temperature level required by the load in the heat demand area is high, hot water is flowed through the heat exchange tube 10 to heat the condensate in the liquid receiving tank 4 in advance.
Thereafter, the condensed liquid in the liquid receiving tank 4 is forcibly fed into the heat storage medium tank 2 by the pump 15, and reaction or absorption is performed at a high temperature. As this hot water, hot water heated by the tube 3 can also be used.

In the embodiment shown in Figure 3g4, the heat storage medium tank 2 is used when the heat source fluid at the heat supply area and the load fluid at the heat demand area are different, or when the load fluid is to be used in a closed circuit, such as for a cylinder metal. A load fluid passage 20 is provided therein. At the heat supply site, the heat source fluid passes through piping routes 5→3→6, heats the four heat media in the heat storage medium tank 2, and generates gas. On the other hand, in the heat demand area, the load fluid passes through the piping 18 and the load fluid passage 2
0 and reaches the pipe 19.

In addition, in the heat transport method using the transport machine shown in Figs. 1 to 4, the heat transport unit incorporating the heat storage medium tank 2, liquid receiving tank, etc. and the heat transport machine are integrated, but as shown in Fig. 5 The heat transport unit 21 may be configured to be transported by being mounted on an ordinary truck or freight car.

22 is a hanging fitting.

The structure of the heat storage medium tank is preferably such that a large number of shelves 23 are provided to facilitate the flow of gas and condensate as shown in FIG.

Furthermore, if a water sprinkler pipe 24 is installed as shown in FIG. 7, the reaction (for example, CaO+ H2O-+ Ca(OH)2) time can be shortened.

Furthermore, when the heat storage medium is ca(OH)2, the gas generated at the heat supply source is water vapor as shown in the previous equation, and the condensate is water, so the embodiments shown in FIGS. Like?
There is no need to go to the trouble of transporting water. That is, as shown in FIG. 5, in the heat supply area, water vapor generated from the heat storage medium 1 heated by the heat source fluid is discharged to the outside through the pipe 25.

On the other hand, at the heat demand area, water is replenished from the valve 26 and reenters the heat dissolving medium tank 2, and the heat storage medium 1 absorbs, reacts, and generates heat to heat the load fluid. In this case, compared to the above-mentioned embodiments, the receiving tank 4, heat exchange tube 10, etc. are not required, so the unit becomes simple and a low-cost heat transporter is obtained.

In addition, similar heat transport equipment generates gas at the heat demand area and stores heat.
There is a device that generates heat by re-entering the gas, but in this case, when re-entering the gas, a large compressor is required for low-temperature steam etc., which is very disadvantageous. In the case of re-entering the condensate as in the example, only a small pump is required, which is very advantageous compared to the former.

Further, FIG. 9 shows a case where the entire heat storage medium tank 2 is heated from the outside to store heat. For example, in a garbage incineration area, the exhaust gas flue 2
Attach this heat storage medium unit to 7 etc., for example, Ca
(OH)2-)CaO+H2O reaction is caused and water vapor is released from the valve 28.

Then, this unit is transported to a heat demand area, water is extracted from the pulp 28, and the pulp 29, 30 is connected to a load, such as water in a heated pool, to heat the water in the pool.

According to the present invention, it is possible to provide a highly reliable heat transport device that is compact, easy to handle, and has a high waste heat regeneration rate without any management problems using a heat transport method that does not use pipeline transportation equipment. The volume of the transport device is reduced because the gas generated by the heat exchanger is transported in a liquid state, and the fluid passage can be used as a heat source fluid passage in a heat supply area and as a load fluid passage in a heat demand area. The heat storage medium tank is also very compact and has a very compact configuration.
;Iij elementization is possible, and easy-to-handle fluids such as high temperature water, steam, and cooling water can flow through both the heat source fluid passage and the load fluid passage, and switching of connections is very easy, and the compressor can also be It is unnecessary, easy to manufacture, and has the advantage of being an inexpensive configuration.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, with FIG. 1 being a system explanatory diagram and FIGS. 32 to 9 being system explanatory diagrams of other embodiments. l... Storage P (medium, 2... Heat storage medium tank, 3... Group/fluid passage, 4... Liquid receiving tank, 5, 6
...Piping, 7, 8...Connection piping, 9.
...Unit, Lo... Group, Tube, 11...
... Pulp, 12, 13 ... Solenoid valve, 14
・・・・・・Pulp, lto・dan・pump, 16,17・
...Pulp, 18.19...Bend/Piping, 20...
group/load fluid passage, 21... heat transport unit,
22...Hook, 23...Shelf, 24.
...Water pipe, 25...Group/piping, 26...
・Pulp, 27... Flue, 28... Pulp, 29.80... Balm Patent applicant Ebara Corporation Representative Patent attorney 1,000 1) Twisting Patent attorney Takao Maruyama

Claims (1)

[Claims] 1. A heat storage medium that generates gas through a chemical reaction when heated, and when the condensed liquid of the gas is re-entered, it generates heat and returns to its original substance, and heat can be transferred to the heat storage medium. A heat storage medium tank having a fluid passage and a heat exchange section that condenses and liquefies gas separated from the heat storage medium by the heat of the heated τ+iE body flowing through the fluid passage are connected in a communicating state and transported. At the heat supply location, the heating fluid generates gas from the heat storage medium, the unit is transported to the heat demand location, and the condensed liquid is re-entered into the heat storage medium tank at the heat demand location. By this, the heated 111
9 Heat transport method to heat the body. 2. The heat transport method according to claim 1, wherein the unit has a movable structure. 3. The heat storage medium is Ca(OH)2, and the gas is H
The heat transport method according to claim 1 or 842, wherein the heat transport method is 2O.